What Is an Esophageal Manometry?

Esophageal manometry is adapted to primary esophageal movement disturbances (tachycardia, diffuse esophageal spasm, nutcracker esophagus, etc.), secondary esophageal movement disorders (scleroderma, diabetes), reflux esophagitis, Non-thoracic chest pain.

Esophageal manometry

Right!

Esophageal manometry is adapted to primary esophageal movement disturbances (tachycardia, diffuse esophageal spasm, nutcracker esophagus, etc.), secondary esophageal movement disorders (scleroderma, diabetes), reflux esophagitis, Non-thoracic chest pain.

Esophageal manometry

Primary esophageal dyskinesia (tachycardia, diffuse esophageal spasm, nutcracker esophagus, etc.), secondary esophageal dyskinesia (scleroderma, diabetes), reflux esophagitis, non-thoracic chest pain, etc. .

Patients with corrosive esophagitis.

Recorder, four-channel pressure measuring catheter, hydraulic capillary perfusion system, pressure transducer, syringe, etc.

1. After inserting the pressure measuring catheter into the stomach, slowly pull the pressure measuring catheter. Observe the pressure change on the computer screen. When the proximal channel enters the lower esophageal sphincter (LES) area, you can see that the pressure in this channel rises. Continue to pull the catheter out, and when the channel leaves the LES area, the pressure drops below the baseline, so the length of the LES functional area (2-4 cm) can be calculated.

2. After the distal channel of the pressure-measuring catheter leaves the LES area, the catheter is pulled 3cm outside. At this time, the 4 channels are located on the LES 3, 8, 13, 18cm. Instruct patients to swallow and record the amplitude, speed and direction of peristalsis of the esophagus.

3. When the pressure measurement channel enters the upper esophageal sphincter (UES), another general high pressure region can be measured, which is the UES pressure.

1. Stop all drugs 24h before the test. Drugs affecting gastric acid secretion and gastrointestinal motility drugs should be stopped for 72 hours.

2. The LES can be divided into abdominal and thoracic segments according to the reversal point of respiratory movement. The abdominal LES is relatively stable. This segment can be used to calculate the LES pressure.

3. Reference value of normal LES pressure: end of inspiration: 5.29kPa ± 1.76kPa (39.7mmHg ± 13.2mmHg), end of expiration 2.03kPa ± 1.43kPa (15.2mmHg ± 10.7mmHg), intermediate breathing pressure 3.23kPa ± 1.35kPa (24.2mmHg ± 10.1mmHg).